To: KeithDust2000 who wrote (156616 ) 4/17/2005 1:26:00 AM From: pgerassi Read Replies (2) | Respond to of 275872 Dear Keith: I looked at Xeon DP 2MB L2 at 3.6GHz and it loses to a Opteron 252. It would still lose, if it had increased clock to 3.8GHz. It still loses, if it also got double the L2. It still loses, if it had a 1066MHz FSB. FBDIMMs would cause it to lose even more due to the increased latency. Now by the time it and the chipset it needs to do well comes out, where will AMD be at? Opteron 280 will be out by Q4, possibly even Q3 of this year. More than likely it will be at least to Opteron 285 (2.6GHz by 2) on 90nm. It may be on a new socket on 65nm by then as Fab 36 is operational. A 2.6GHz Opteron DC with 2MB L2 each and 4 channel DDR2 (maybe DDR3) on die with 4 HT3 links, one of which is cHT (for 4xx having 2 cHTs, 8xx having 3 cHT and 16xx having all 4 being cHT links). We know Socket M2 is coming for desktops and mobiles, why not one for servers called M1 having the above. HT1 went to 800MHz, HT2 goes to 1.4GHz so HT3 must go to at least 2GHz. Dempsey could be old and way too slow by the time it comes out. Like the (I forget what it was called) P4 that was supposed to replace P4 this year, it could get cancelled. It seems a lot of Intel designs have that fate. A lot of them also miss their targets and underwhelm when they see the light of day. Don't fall into the trap of comparing a future CPU with on paper capabilities to a currently existing CPU. All sorts of things may happen, it could slip (many do and it would not be that unusual), it could have its targets reduced (just look at Prescott for an example), it could get cancelled (the 4GHz P4 comes immediately to mind) and it could turn out to be a flop (Merced, RDRAM and MTH come to mind). Look at it by comparing IA32 only 3GHz NW Xeon MP at 400MHz FSB and 2MB L3 versus Opteron 875. It is a slaughter. Intel has to hit a moving target and it is not very nimble even when it was ahead. Its trying to push an untried new socket, an untried new process and an untried new CPU where it has recently been burned before as a accomplished fact. Lets look at the PR used to promote the Prescott. It was to be at 4GHz in 2003, have higher IPC than NW, have an awesome 1MB L2 and run much cooler to boot. It only accomplished 1 out of those 4. One target will be never achieved, 4GHz. It missed by three quarters even coming out and will never be considered to have better IPC or lower power than NW. Pete